CN205423987U - Elasticity balanced type case sealed firmly - Google Patents
Elasticity balanced type case sealed firmly Download PDFInfo
- Publication number
- CN205423987U CN205423987U CN201520822086.6U CN201520822086U CN205423987U CN 205423987 U CN205423987 U CN 205423987U CN 201520822086 U CN201520822086 U CN 201520822086U CN 205423987 U CN205423987 U CN 205423987U
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- China
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- sleeve
- outer sleeve
- valve
- balanced type
- valve base
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- Withdrawn - After Issue
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Abstract
This novel case that belongs to especially relates to elasticity balanced type case sealed firmly. It includes two upper and lower parts, upper portion includes. Outer sleeve and last disk seat, outer sleeve inner wall bottom sets up the annular arch of centering, it detains in the annular arch of outer sleeve to go up the disk seat, set up the dish spring at last disk seat with the annular space that the outer sleeve formed, clamping ring and carbon seal ring, the position of disk seat top sets up and compresses tightly the sleeve on the outer sleeve inside wall, compress tightly sleeve and outer sleeve fixed connection, the lower part is including throttle sleeve and disk seat, set up the valve clack in the throttle sleeve, the valve clack center sets up the valve rod. This is novel to have following advantage: this neotype elasticity balanced type case sealed firmly structure is a novel seal structure who is used for the telescopic governing valve of the sealed face of balanced type two pass. Its design through the valve tube -in -tube structure makes the valve satisfy multiple complicacies such as heavy -calibre, high temperature, high pressure, high pressure are poor, high solid content simultaneously and requires the combined action operating mode, and lower leakage rate can be realized to the while.
Description
Technical field
Basis is the most novel belongs to spool, particularly relates to elastic hard sealing balanced type spool.
Background technology
Sleeve-type regulating valve is the most ripe through development for many years, is that main flow in the market regulates one of valve product.The major advantage of sleeve-type regulating valve has: guide reliable, good stability；Internal non-threaded connects, and maintenance is convenient；The requirement considerable Structure adaptation difference operating mode can be changed.
Telescoping valve generally has three kinds of structures by internal pressure model of action: valve cage guides single seat telescoping valve, balanced type single seat telescoping valve；Balanced type double sealing surface sleeve valve.Their main distinction is valve seat quantity, respectively: single valve seat；Single valve seat adds one slipper seal；Double-valve-seat.
Valve cage guides in single seat telescoping valve, and sleeve only guides and compresses valve seat, can regard one of common single seat as and improve the breed.It is the same with single-seat valve is generally used for the operating mode that bore is little, pressure reduction is low.
Balanced type single seat telescoping valve is to use in a large number in common operating mode at present, it by one valve seat primary seal with together with superposed slipper seal form.It possesses the advantage the same with single-seat valve: while easy to manufacture, easy to maintenance, has possessed again pressure balanced feature, can be used for the situation of heavy caliber, High Pressure Difference.But this road slipper seal on top brings ratio large effect also to the reliability of valve, sliding ring repeatedly moves and weares and teares unavoidably, causes service life limited.Balance ring is more sensitive to the cleannes of medium simultaneously, the inapplicable operating mode containing solid particle.
The advantage of balanced type double sealing surface sleeve valve is simple and reliable for structure, and common structure is soft seal, and overall performance is preferable.If but make two pass and firmly seal the compound bad working environments of reply, including heavy caliber, high temperature, high pressure, High Pressure Difference, processing and manufacturing requires the most at a relatively high.This is because spool double-sealing face is rigid state, valve seat double-sealing face is also rigid state, and laminating difficulty the most completely is the biggest.Sealing difficulty, leakage rate is greatly the shortcoming that it is intrinsic.
Summary of the invention
This novel purpose is that the defect for prior art provides a kind of elastic hard sealing balanced type spool.
This is novel for achieving the above object, adopt the following technical scheme that a kind of elastic hard sealing balanced type spool, wherein, including upper and lower two parts, top includes. outer sleeve and upper valve base, the inwall of outer sleeve bottom arranges the annular protrusion to center, upper valve base be cross section be " L " type part, upper valve base is buckled in. on the annular protrusion of outer sleeve, in the annular space that upper valve base and. outer sleeve are formed, disc spring is set, pressure ring and carbon seal ring, wherein disc spring and pressure ring form elastic force, carbon seal ring is used for sealing, . the position above the upper valve base of outer sleeve medial wall arranges clamp sleeve, clamp sleeve is fixing with outer sleeve to be connected,
Bottom includes throttle sleeve and valve seat, and wherein valve seat is arranged on bottom, and throttle sleeve is cylindrical component, and its diameter matches with outer sleeve, and throttle sleeve also matches with the joint face of outer sleeve, it is ensured that both energy compact siro spinning technology,
Flap is set in throttle sleeve, the centrally disposed valve rod of flap.
Elastic hard sealing balanced type spool as above a kind of, wherein, described clamp sleeve and. outer sleeve are fixed by housing screw and are connected.
A kind of elastic hard sealing balanced type spool as above, wherein, the width of described clamp sleeve is less than the width of upper valve base, and upper valve base and flap are provided with the chamfering being mutually matched.
A kind of elastic hard sealing balanced type spool as above, wherein, the pretightning force of described disc spring provides the half of maximum driving force for valve actuator.
This novel a kind of elastic hard sealing balanced type valve core structure having the advantage that the present invention, is a kind of novel sealing structure for balanced type double sealing surface cover cartridge type regulation valve.It makes valve meet the Various Complexes such as heavy caliber, high temperature, high pressure, High Pressure Difference, high solids content by the design of valve cage structure to require jointly to act on operating mode, can realize relatively low slip simultaneously simultaneously.The III level slip that grade specifies by original GB/T4213-2008 can be will leak out and bring up to more than IV level.
Accompanying drawing explanation
Fig. 1 elastic hard sealing balanced type valve core structure schematic diagram；
Fig. 2 elastic hard sealing balanced type valve core structure regulation valve scheme of installation.
In figure: 1. valve seat, 2. throttle sleeve, 3. flap, 4. outer sleeve, 5. disc spring, 6. pressure ring, 7. carbon seal ring, 8. upper valve base, 9. clamp sleeve, 10. valve rod, 11. housing screws, 12. valve bodies, 16. valve gaps, flange bolt in 17.
Detailed description of the invention
As shown in Figure 1, a kind of elastic hard sealing balanced type spool, including upper and lower two parts, top includes outer sleeve 4 and upper valve base 8, the inwall of outer sleeve 4 bottom arranges the annular protrusion to center, upper valve base 8 be cross section be " L " type part, upper valve base 8 is buckled on the annular protrusion of outer sleeve 4, in the annular space that upper valve base 8 and outer sleeve 4 are formed, disc spring 5 is set, pressure ring 6 and carbon seal ring 7, wherein disc spring 5 and pressure ring 6 form elastic force, carbon seal ring 7 is used for sealing, position above outer sleeve 4 medial wall upper valve base 8 arranges clamp sleeve 9, clamp sleeve 9 is fixing with outer sleeve 4 to be connected,
Bottom includes throttle sleeve 2 and valve seat 1, and wherein valve seat 1 is arranged on bottom, and throttle sleeve 2 is cylindrical component, and its diameter matches with outer sleeve 4, and throttle sleeve 2 also matches with the joint face of outer sleeve 4, it is ensured that both energy compact siro spinning technology,
Flap 3, the centrally disposed valve rod of flap 3 10 are set in throttle sleeve 2.
Described clamp sleeve 9 is connected by housing screw 11 is fixing with outer sleeve 4.
The width of described clamp sleeve 9 is less than the width of upper valve base 8, and upper valve base 8 and flap 3 are provided with the chamfering being mutually matched.
The pretightning force of described disc spring 5 provides the half of maximum driving force for valve actuator.
As shown in Figure 2, the mounting structure of the spool of the application is substantially: spool is arranged on the reserved intracavity of valve body 12, and the valve seat 1 of spool is arranged on bottom, arranges valve gap 16 in the top of valve body 12, valve gap 16 is connected by middle flange bolt 17 is fixing with valve body 12, and it is outside that valve rod 10 stretches out valve gap 16.
Claims (4)
1. an elastic hard sealing balanced type spool, it is characterized in that: include upper and lower two parts, top includes outer sleeve (4) and upper valve base (8), the inwall of outer sleeve (4) bottom arranges the annular protrusion to center, upper valve base (8) be cross section be " L " type part, upper valve base (8) is buckled on the annular protrusion of outer sleeve (4), in the annular space that upper valve base (8) and outer sleeve (4) are formed, disc spring (5) is set, pressure ring (6) and carbon seal ring (7), wherein disc spring (5) and pressure ring (6) form elastic force, carbon seal ring (7) is used for sealing, in the position of top, outer sleeve (4) medial wall upper valve base (8), clamp sleeve (9) is set, clamp sleeve (9) is fixing with outer sleeve (4) to be connected,
Bottom includes throttle sleeve (2) and valve seat (1), wherein valve seat (1) is arranged on bottom, throttle sleeve (2) is cylindrical component, its diameter matches with outer sleeve (4), throttle sleeve (2) also matches with the joint face of outer sleeve (4), ensure that both can compact siro spinning technology
Flap (3), flap (3) centrally disposed valve rod (10) are set in throttle sleeve (2).
2. a kind of elastic hard sealing balanced type spool as claimed in claim 1, it is characterised in that: described clamp sleeve (9) is connected by housing screw (11) is fixing with outer sleeve (4).
3. a kind of elastic hard sealing balanced type spool as claimed in claim 2, it is characterized in that: the width of described clamp sleeve (9) is less than the width of upper valve base (8), and upper valve base (8) and flap (3) are provided with the chamfering being mutually matched.
4. a kind of elastic hard sealing balanced type spool as claimed in claim 3, it is characterised in that: the pretightning force of described disc spring (5) provides the half of maximum driving force for valve actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520822086.6U CN205423987U (en) | 2015-10-22 | 2015-10-22 | Elasticity balanced type case sealed firmly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520822086.6U CN205423987U (en) | 2015-10-22 | 2015-10-22 | Elasticity balanced type case sealed firmly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423987U true CN205423987U (en) | 2016-08-03 |
Family
ID=56517063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520822086.6U Withdrawn - After Issue CN205423987U (en) | 2015-10-22 | 2015-10-22 | Elasticity balanced type case sealed firmly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609873A (en) * | 2015-10-22 | 2017-05-03 | 中核苏阀科技实业股份有限公司 | Elastic hard-sealing balance type valve element |
-
2015
- 2015-10-22 CN CN201520822086.6U patent/CN205423987U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609873A (en) * | 2015-10-22 | 2017-05-03 | 中核苏阀科技实业股份有限公司 | Elastic hard-sealing balance type valve element |
| CN106609873B (en) * | 2015-10-22 | 2020-01-07 | 中核苏阀科技实业股份有限公司 | Elastic hard sealing balanced valve core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20200107 |
|
| AV01 | Patent right actively abandoned |